三种化学结构不同的表面改性大分子 （DEG、DPS和SMM41）用于制备新型聚醚砜（PES） 超滤膜，试图改善其在水处理中的性能。 在本研究的第一阶段，使用SMM41来修饰PES的表面 在整个实验过程中，膜最大化了渗透通量，达到了较高的总通量 有机碳（TOC）去除和低天然有机物（NOM）沉积。什么时候 聚乙烯吡咯烷酮（PVP）是一种造孔添加剂，也用于铸造溶液中， 在研究范围内，其影响没有统计学意义。表面改性膜 统计结果与未改性膜相同。然而，这个问题的性质 饲料浓缩渥太华河水（CORW）对环境有重要影响 这些新膜的性能。低分子量组分（LMW）的 河水造成的膜污染较少，产水量较高（渗透） 通量），尽管TOC去除率较低。尽管如此，总的来说，TOC清除率仍然很低 与文献中报道的超滤膜相比，高。包括17个参考文献、表格、图表。

Three surface modification macromolecules (SMMs) with different chemical structures (DEG, DPS and SMM41) were used in the preparation of new polyethersulfone (PES) ultrafiltration membranes, in an attempt to improve their performance in water treatment. During the first stage of this study, the use of SMM41 to modify the surface of PES membranes maximized the permeate flux throughout the experiment, achieved high total organic carbon (TOC) removals and low natural organic matter (NOM) deposition. When polyvinylpyrrolidone (PVP), a pore forming additive, was also used in the casting solution, its effect was not statistically significant in the range studied. Surface modified membranes performed statistically the same as the unmodified membranes. However, the nature of the feed concentrated Ottawa River water (CORW) had an important impact on the performance of these new membranes. The low molecular weight fraction (LMW) of the river water caused less fouling of the membranes, had higher water productivity (permeate flux), although TOC removal was lower. Nevertheless, in general, TOC removals were high, compared with those of ultrafiltration (UF) membranes reported in the literature. Includes 17 references, tables, figures.